Originally Posted by mbanwi
here is it:
looks like norbert might have an incorrect group id.
if you check 520 in /etc/group you will see who is the group owner.
what you need to do here is change norberts gid which is currently 520 to 519.
in /etc/group, change norberts gid to 519
in /etc/passwd change norberts gid 519
chown -R norbert.norbert /home/norbert
should solve the problem.